Cage for roller bearings



Nov. 6, 1923. 11,473,168

5. G. WINGQUIST CAGE FOR ROLLER BEARINGS Original Filed Sept. 9. 1919 Patented Nov. 6, 1923.

were

were res rarer rare.

S17E19 GUSTAF WINGQUIST, OF GO'ITENBORG, SWEDEN, ASSIGNOB TO AKTIEBOMGET SVENKA. KULLAGERIFABRIKEN, 0F GOTTENBORG, SWEDEN, A CORPORATION OF CAGE FOR ROLLER BEARINGS.

Original application filed September 9, 1919, Serial No. 822,753. Divided and this application filed December 6, 1921.

To (ZZZ whom it may concern:

Be it known that I, SvnN GUs'rAr WING- QUIST, a subject of the King of Sweden, residing at Gottenborg, 'in the Kingdom of Sweden, have invented new and useful'lmprovements in Cages for Roller Bearings (for which Ihave filed an application in Sweden September 3, 1918, and have been granted a patent, No. 54,896, on June 14, 1923), of which the following is a specification.

This invention provides a cage for roller bearings ofthe character set forth in application Serial No. 322,7 53, filed September 9, 1919, of which the present application is a division. y

According to this invention, the rollers of one row hear at one race-ring or at both race-rings against track surfaces, preferably conical in shape, and which may vary in width, and alternating with track surfaces (preferably conical in shape and converging in opposite direction to those above mentioned). for supporting the rollers of another row, whereby it is possible to use rollers having a great length relatively to thew'idth of the bearing. \The rollers are,

preferably, conically shaped and the races as well as the rollers should have the apex of their conical surfaces situated on the axis of rotation of the bearing, thus securin a theoretically exact rolling movement. his construction will thus give a roller bearing which is able to carry great radial loads with small friction while automatically efiecting an equal distribution of said loads on both of the rows of rollers, said roller bearing being further adapted to sustain great endthrust loads in either direction. Moreover,

use of divided rings and provides a safe the said construction of the bearing permits the filling in of the above rollers without the guide for the rollers in lateral direction.

In the accompanying drawings several forms of roller bearings embodying this invention are shown.

In the drawings,-

Figure 1 shows an axial section of one embodiment of the bearing in which the rollers bear with both ends against the inner race-ring and between their ends against the outer race-ring;

Serial No. 520,400.

Fig. 2 is a plan of the roller cage, partly in section;

. Fig. 3 is a planof another embodiment of the roller cage;

Fig. 4 shows the sheet metal blank of the of the a sheet metal cover for retaining the rollers? Fig. 9 is a side elevation of the same roller cage; Figs. 10 and 11 show one of the sheet metal covers in central section and in elevation re spectively;

Fig. 12 shows a-similar construction to- Fig. 8, but Without the sheet metal cover.

In the bearing shown in Fig. 1, the rollers 1 of onerow of rollers rest at their ends on conical surfaces 2, 3, while the rollers 4 of the other row of rollers rest at their ends on conical surfaces 5, 6 formed on the inner ring 7. As regards the outer ring 8, the rollers between their ends bear against conical races 9 and .10. The rollers of the two rows also rest at their larger ends on side flanges 11, 12, respectively, formed on the inner ring and serving to prevent displacement of the rollers Within the bearing. The roller cage 13 consists, preferably, of an annular folded ribbon, the folds of which serve to receive the rollers which will engage the folds with their smaller ends while being free at their larger ends (see also Fig. 2). Extending from one, preferably the outer,

edge of said ribbon, or from both edges bodiment shown in Fig. 5 the said laps 16 are bent over the larger ends of the rollers, "preferably so as to exert a slight resilient pressure in the axial direction on the roller.

The roller cage shown in Fi 6 comprises, as the roller cage shown in igs. 1 and 2, an annular folded ribbon 33, the folds of which receive the rollers, which engage the said folds with their smaller ends. Projecting from those parts 34 of the roller cage situated along said ends of the rollers are tongues 35 bent to conform with the larger, conical end of therollers so as to maintain the latter in their respective places.

It should be vunderstood that the roller cages shown are referred "to by way of 'example only, and that the construction and arrangement of the cages may be, varied in many ways.

In Fig. 7 a modified form of the bearing is shown in which the rollers bear with their ends against each of the bearing rin s. Formed on the outer ring are two sideflanges 27, 28, each corresponding to one of the rows of rollers, and serving to prevent axial displacement of the rollers. The roller cage is formed by two sheet metal rings 29 connected by tongues 3.0, each'of which extends between two adjacent rollers and is riveted to the opposite ring. Furthermore tongues 31 maybe formed on the one edge, preferably the inner edge, of the ring, said tongues projecting between and engaging the rollers.

Also in the embodiment last described use may be made, if desired, of aso-called Timken-type guide comprising, for instance a flange at the mid-section of one of the race rin s.

n the embodimentshown in Figs. 8 and 9, the roller cage comprises a solid ring 36 having conical borings for the rollers formed in both of its end surfaces. For securing the rollers in place I may use sheet. metal covers 37 (Figs. 10 and 11) engaging in peripheral rooves formed at'the outer edges of the ball cage ring. To this end sheet metal cover 37 may be manufactured with a greater taper than its final form, as shown by full lines in Fig. 10. The covers, when placed in their proper positions, are then pressed by means of any'suitable tool against the sides of the ball cage to the shape shown in dotted lines, so as to be causedto engage the said peripheral grooves. The roller cage may also be formed without sheet metal covers, as shown in Fig. 12.

It is evident that the bearing and ca a may be further modified in many ways wit out departing from the principle of the -in vention.

In addition to the conical rollers shown, the bearing .ma also have cylindrical rollers, alternate with the conical rollers,

according to any of the arrangements set.

with the races for another row in such a way that each roller bears against one ring at both of its ends and against the other ring between its ends, combined with a roller cage having successive portions engaging alte'rnatelythe rollers of the respective rows to hold them in position.

2. In a roller bearing, an inner ring, an outer ring, and rows of rollers interposed between said rings, the said rings havingseparate races for each row .of rollers, the races for one row alternating axially with the races for another row, in 'such 'a way that each roller bears against one ring at both of its ends and against the other ring between its ends, combined with a roller cage. havingportions engaging the respective. rollers to hold them spaced apart, and to' hold the rollers of the respective rows with their axes converging to a common apex.

3 In a roller bearing, comprising an inner ring, an outer ring, and rows of rollers interposed between said rings, the rings bein formed with separate races for each row 0 rollers, the 'races for one row alternately axially with the races for another row, a roller cage consisting of an annular folded ribbon, the folds of which are adapted to receive the ends of the rollers. 4

4. Ima roller bearmg, an inner ring, an outer ring, rows of rollers interposed .be-

tween said rings, the rings being formed" with separate races for each row of rollers, the races for one row alternatin axlally with the races for another row, a ro ler ea c,

consisting of an annular, folded ribbon, t e folds of which are adapted to receive the ends of the rollers, having tongues formed ton es being bent so as to constitute auxiliary means for 'holdmg the rollers.

5. In a roller bearing, an inner rin an 4 on the edges of the folded ribbon, said 6. In a roller bearing, en inner rin outer rmg, rows of rollers mterpose oetween said rings, the rings being formed with separate races for each row of rollers v the races for one row alternating axially eeive the ends of the rollers, with tongues formed on the ribbon adjacent to one end 36 of the rollers and bent over the other ends of the rollere.

In witness whereof, I have hereunto signed my name.

EVEN GUSTAF WINGQUIST. 

